Noah Marshall is a man with a cause. After losing his parents and his fiance on September 11, 2001, he vows that he will make the skies of the world safer. Creating a system where aircraft can be overtaken by people on the ground in the event of an emergency, he ensures that the atrocities of 9/11 will never happen again. Jaxon Stone is a retired Australian SAS soldier whose wife dies when the plane she is travelling in gets shot down in the middle east. Joining Marshall, he quickly becomes invaluable to the new protective organisation. But what happens when a man with a vengeance finds a way...